Type-writing machine.



.LPURDY.

TYPE WRITING MACHINE. APPLICATION FILED JULY 19, 1912.

Patented. Sept. 23, 1918.

INVENTIIJFQ: )2

1415 A' TEJR EY tached from the machine in order that other work sheet controlling devices of a different character may be substituted therefor. In order to accomplish this result I have p ovided means for quickly detaching the supporting rod 9 together with the parts carried thereby from the machine. Thus, the left-hand end of the supporting rod 9 is provided with a tongue 20 which is adapted to be received in a corresponding groove 21 in the inner end of a supporting section 22. This supportingsection in the present instance is in the nature of a'short rod of a diameter corresponding to the diameter of the supporting rod 9. The section 22 is provided with a tongue 23 at its outer end, which tongue is adaptedto be received in a corresponding groove 24 formed in an upwardly extending lug 25 on the left-hand end bar 2 0f the carriage. The lug 25 corresponds to the lug 6 and is apertured to receive a headed screw 26, the threaded end 27 of which is received in a tapped opening in the supporting section 22. The unthreaded portion of the screw 26 passes freely through the usual nut 28 arranged outside of the lug 25. This nut is provided with an eccentric bearing portion 29 on which the usual toggle link 30 of the feed roll release mechanism is mounted. The nut2S is elfective to turn the eccentric bearing 29 to vary the pivotal point of connection of the link 30 and thus regulate the feed rollrelease mechanism. The screw 26 is effective not only to connect the supporting section 22 tothe left-hand end plate but is likewise eifective to secure the nut 28 in its adjusted position. The tongue and groove connection 23-24 between the carriage and the supporting section 22 is effective to prevent the supporting section from turning. it will be understood therefore that when the rod 9 has its tongue 20 seated in the groove 21 of the supporting section an interlocking connection will be established between the supporting section and the rod 9, thus preventing a turning movement of the latter. In order to further connect the supporting rod with the section 22 1 have provided a connecting orlatching device or member which in the present instance is in the nature of a sleeve 31, said sleeve having a here which corresponds to the diameter of the supporting rod 9 and the section 22. This sleeve is adapted to slide longitudinally of the supporting section and rod 9 into and out of a position whereit will overlap or span the two members 9 and 22 as indicated in Figs. 2 and I prefer to employ -means whereby the latching device or sleeve 31 may be locked or secured againstaccidental displacement when it is in the position shown in Fig. 2 to connect the supporting rod to the carriage. In the present instance I have provided a twoway slot 3233, the portion 32 of the carried thereby slot extending longitudinally of the section 22 and the rod 9, whereas the portion of the slot extends at substantially right angles to the portion 32. A pin 34 is fixed in the section 22 and projects into the slot 3233. 1 preferably provide a finger piece on the latching device or sleeve in order to effect a turning movement thereof and to shift or slide it longitudinally on the supporting member 22 into and out of engagement with the supporting rod 9. This finger piece in the present instance consists of a pin fixed to the sleeve and projecting outwardly therefrom.

A the parts are shown in Fig. 1 the supporting rod 9 is connected to the carriage and is fixed against rotative movement thereon, so that the spring pressure ordinarily exerted by th paper fingers and iargin feed rollers may be rendered effective. If the operator desires to remove the supporting rod it is merely necessary to turn the sleeve with the aid of a finger piece 35 from the position shown in Fig. 2 to a position where the pin 34 will register with the slot 32. The sleeve may then be moved to the left on the section 22 as indicated in Fig. 3, thereby moving the sleeve out of engagement with the rod 9 and enabling the tongue 20 to be displaced from the groove 21, thereby freeing the left-hand end of the rod 9 from its supporting means. The rod 9 may then be moved to the left, withdrawing the bearing portion 8 from the bearing opening 7 in which it is seated. Thus, it will be understood that the supporting rod with the various paper controlling devices may be readily removed from the machine and anothercorresponding rod equipped with work sheet controlling devices of a different character may be substituted therefor. When the machine is to be re-converted into an ordinary corre- 'spondence machine the rod 9 with the devices equipped as shown in the drawings may be returned to position and locked, c011- nected with the carriage.

It will be understoodthatthe left-hand end of the rod 9 abutting thesection 22 provents the longitudinal movement of the rod in one direction, whereas, the shouldered portion- 36 of the rod at the junction between the body of the rod and the reduced portion 8 bears against the inner face of the projection 6 and prevents a longitudinal movement of the rod in the opposite direction. It will also be understood that the latching device when in the operative position shown in Fig. 2 constitutes a bearing for the left-hand end portion of the rod 9 which is seated in the bore of the sleeve.

In Fig. 4 I have illustrated a modifiedform of the construction in whichthe righthand end of the supporting rod 9* has a reduced portion 8 which is received iii a '7. In a typewriting machine, the combination of a carriage;' a supporting rod; means for detachably connecting the supporting rod to the carriage, said means comprising a sleeve that is movable longitudinally of the rod and is adapted to surround the rod at one end portion thereof; and transverse interlocking means co6perating with the rod to positively prevent it i from turning.

8. In a typewriting machine, the combination of a carriage; a supporting rod;

means for detachably connecting the sup i porting rod to the carriage, said means comprising a supporting section carried by the carriage, said supporting section and rod abutting end-to-end,- and a latching member movable thereon into and out of engagement with the rod to connect the rod to the carriage or to free it for removal from the carriage; and means which interlock with the rod to prevent it from turning.

9. In a typewriting machine, the combination of a carriage; a supporting rod; means for detachably connecting the supporting rod to 'the carriage, said means comprising a supporting section carried by the carriage, and 'a sleeve mounted for movement longitudinally of said section and rod to span the two and connect. them together or to free the rod to enable it to be removed from the carriage; and interlocking engaging means between the rod and said supporting section to prevent the rod from turning.

10. In a typewriting machine, the combination of a carriage; a platen; a supporting rod arranged above the platen; paper fin gers carried by and adjustable along said supporting rod;

for detachably connecting the supporting rod with the carriage so that the supporting rod, paper fingers and erasing shelf may be removed as an entirety from the carriage when desired, said connecting means coman erasing shelf likewise ,Ctlll'ltktl by said supporting rod; and means I prising a bearing for the rod at one end thereof and from which the rod may be withdrawn when it is released, a support ing. section carried by the carriage, a sleeve mounted for movement longitudinally of said, section and rod and adapted to overlap the two to connect them together, and a pin and slot connection between said sleeve and one of said section and rod members to enable the sleeve to move longitudinally as specified or to lock the sleeve against such longitudinal movement.

11. In a typewriting machine, the combination of a carriage; a platen; a supporting rod arranged above the platen; paper fingers carried by and adjustable along said supporting .rod; an erasing shelf likewise carried by said supporting rod; and means for detachably connecting the supporting rod with the carriage so that the supporting rod, paper fingers and erasing shelf may be removed as an entirety from the carriage when desired, said connecting means com prising a bearing for the rod a one end thereof and from which the rod may be withdrawn when it is released, a supporting section carried by the carriage, a sleeve mounted for movement said section and rod and adapted to overlap the two to connect them together, and a pin and slot connection between said sleeve and one of said section and rod members to enable the sleeve to move longitudinally as specified or to lock the sleeve against such longitudinal movement, said rod and section having one a groove and the other i a tongue by which the rod is prevented from turning when the rod is in place.

Signed at the borough of h'l anhattan, city of New York, in the county of New York, I and State of New York, this 18th day of I July A. l). 1912.

JOHN PURDY. \Vitncsscs:

M. F. I'IANNWEBER, CHARLES E. SMITH.

longitudinally of 

